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Everyone loves playing with a little silly putty, but Thinking Putty is even better! It's the ultimate putty that can stretch, squish, tear, smash, bounce, make noise, and change color.
Even if you don't have some, you can see it in action with our Thinking Putty video:
See all Thinking Putty
Putty is a Non-Newtonian substance, which means that it doesn't follow the theory of viscosity that Newton observed. Viscosity is the "thickness" of a liquid, or its resistance to flow. (Honey, for example, has a much higher viscosity than water.) Thinking Putty, while sometimes having properties of a high-viscosity liquid, also has certain properties of a solid. Like a liquid, it won't hold its shape, although because of its high viscosity, it moves very slowly. Unlike most liquids, however, Thinking Putty changes its behavior based on the amount of force applied. If you pull it gently, it will stretch; if you pull it forcefully, it will tear. If you push your finger in gently it will sink deep into the putty, but if you jab it hard your finger will bounce right off. When you apply the ultimate force—hitting it with a hammer—it acts exactly like a solid and shatters as though it were ceramic. (But then you can pick up the pieces and stretch and smash them like putty again!)
Stretching, Tearing, and Popping Tricks:
One of the most fun things to do with putty is just to stretch, twist, squish, and mold it into shapes. While you're at it, you can make a little noise.
Some Thinking Putty is thermo-chromatic, meaning that it changes color with changes in temperature! Just playing with the putty in your hands will warm it up enough to change colors, but you can also use a hairdryer to change its color in quick, dramatic fashion. Then use something cold, like ice or compressed air, to "draw" on your warm putty. If you just stick a piece of ice onto the putty, you'll see the cold color "glow" through the ice cube.
Bouncing & Smashing Tricks:
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